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A Closer Look at Surround Sound and Reason It Does what it does

5.1 Speakers are the most common implementation of surround sound. In the world of audio, various types of sound configurations are achievable, each giving specific quality and ambience in a given environment. In any form of visual and audio entertainment, the ‘feel’ of its sound is very important. An individual who is experiencing audio or audio-visual media relies on good sound to know what is being conveyed. Sound is as important as the visual media and can be manipulated for fuller comprehension and experience of the media message.

In reality, sound comes at us directly from its source, but is also reflected by surfaces all around us; hence the 3 dimensional feel which our ears comprehend. This is what surround sound systems seek to replicate electronically.

Surround sound refers to audio signals, which have been digitally processed and sent to multiple channels that have outputs located in several physical locations in a room. The listener therefore simultaneously experiences the sound coming at them from the various channels, and gets a feeling of being enveloped by the sound, much like real life experience.

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Surround Sound Receivers digitally process surround sound data and sends it to surround sound speakers where the sound is reproduced. These receivers decode certain surround sound formats including Dolby Stereo Digital (DSD), Digital Theatre Systems(DTS), Dolby Digital EX, THX Surround and Sony Dynamic Digital Sound (SDDS). Of these, Dolby Digital is the surround sound format used by practically all standard DVD’s and some HDTV broadcasts.

5.1 speaker systems broadcast to a cluster of five speakers and one subwoofer. The channels these speakers use are commonly referred to as 5.1, i.e. front right and front left speakers, centre channel speaker, 2 surround sound speakers or rear channel speakers and one subwoofer.

The Front Speakers (left and right) are the most important speakers in the 5.1 speaker set up. Most music comes from these speakers, and they can be used when listening to media with no surround signals available. As such, they need to be high quality, performance speakers.
The Center Channel speaker is usually a small speaker that seats near the center of the surround sound setup. This carries mid range frequencies, especially the vocal range.
The Rear Channel speakers are used behind an individual, one to the right and to the left. These assist to envelop the individual in sound. In the 5.1 surround set up,
These speakers are usually located behind a person’s head. All these speakers have a frequency response in the range of 20Hz to 20kHz.
The Subwoofer speakers are responsible for producing the low frequencies of sound. These are generally omni directional and can be placed anywhere in a space. They are invaluable in ensuring completeness of sound being experienced in an audio clip. These generally have frequency responses of only 3hz to 120 Hz.

Surround sound is a great way to experience multimedia resources. It is heart-warming to experience a film in 3 dimensions. The 5.1 speakers allow users to truly feel the quality of surround sound.

Source: ArticlesBase.com

Ecotones Sleep Sound Machine Review

Many people suffer from sleepless nights without being able to find a solution to this problem. Sleeping pills are not the best option as they can have many unwanted side effects. But there are other solutions that are both natural and much more healthy as well.

A white noise machine can help you relax and sleep better at night. It is a machine that sends out white noise that easily camouflages any unwanted noise in the background. This makes it easier to fall asleep and have a more relaxed and regenerating sleep.

This can be good if you live in an area with a lot of noise perhaps from the city streets or from noisy neighbors. It can also be a great help if you have a partner that is snoring. Many babies also like white noise as they don’t like to sleep in complete silence. Afterall, they have been listening to the sound of their mothers heartbeat for 9 months.

A very effective white noise machine on the market is the Ecotones Duet Sleep Sound Machine. It has many advanced settings and that allow personal individualization.

The Ecotones Duet Sleep Sound Machine is part of a series of sound machines that use an advanced sound system that masks background noises by reacting instantly to them. A small built-in microphone picks up any sound of the environment and responds by adjusting the tone and volume accordingly. Then, the disturbance will become less.

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It has a lot of natural sound recordings to chose from so there is something for any taste. If you like to relax and fall asleep to the sound of nature, birds, water or fire, then you will be happy with this sound machine. The Ecotones Duet sleep sound machine even has a city sound recording for the urban people that miss the sounds of the bustling city.

There are also the more monotonous sound recordings that lets you listen to the repetitive sound of a train or a rotating fan. The Ecotones Duet Sleep Sound Machine has an advanced richness and volume control that allows you to customize it to your preferences and there are no obvious repetitive patterns so it will easily keep your mind relaxed and create a peaceful atmosphere.

The only thing missing is the alarm clock so you will have to have a separate alarm clock next to the sound machine that will help you wake up in the morning.

Anyone who has problems sleeping at night can benefit from a sleep sound machine. Maybe you suffer from insomnia, stress or maybe snoring is what wakes you up at night. Everybody deserves a good night sleep as a lack of sleep can have many unwanted side effects.

Using a sound machine is a matter of preference. Some people really enjoy the sound of a fan or a train, as the repetitive and monotonous sounds lull them right to sleep. Others prefer a more natural sound like the waves of the ocean rolling up on shore. This sound makes it easier to visualize the beach and getting the feeling of being there. While focusing on these sounds it is easier to block out any other noises that can be bothering.

Whatever sound you prefer to listen to then there is a sound machine to fit your needs. Some have a lot of different varieties to choose between where others have a more simple selection like the fan or a night train. No matter what sound machine you prefer then there is one for you that can help you get better rest at night. It is worth to try it to see if it can help you.

Source: ArticlesBase.com